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Onan MDKBK Service Manual

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Summary of Contents for Onan MDKBK

  • Page 1 Caution: This document contains mixed page sizes (8.5 x 11 or 11 x 17), which may affect printing. Please adjust your printer settings according to the size of each page you wish to print.
  • Page 2 Preliminary Service Manual MDKBK MDKBL MDKBM MDKBN MDKBP MDKBR MDKBS MDKBT MDKBU 981-0543C 01-07 Redistribution or publication of this document, by any means, is strictly prohibited.
  • Page 3 California Proposition 65 Warning Diesel engine exhaust and some of its constituents are known to the State of California to cause cancer, birth defects, and other reproductive harm. Redistribution or publication of this document, by any means, is strictly prohibited.

  • Page 4: Table Of Contents

    Table of Contents SECTION PAGE SAFETY PRECAUTIONS ........... . . 1.

  • Page 5: Section Page

    SECTION PAGE 4. PERIODIC MAINTENANCE ..........General Inspection .
  • Page 6 SECTION PAGE 6. ENGINE AND ACCESSORIES ..........Major Engine Service .
  • Page 7 ..........CONTROL WIRING HARNESS—MODELS MDKBK, MDKBL, MDKBM, MDKBN .

  • Page 8: Safety Precautions

    SAFETY PRECAUTIONS Thoroughly read the OPERATOR’S MANUAL • The genset must not be connected to shore before operating the genset. Safe operation and power or to any other source of electrical pow- top performance can only be obtained when er. Back-feed to shore power can cause elec- equipment is operated and maintained proper- tric shock resulting in severe personal injury or death and damage to equipment.
  • Page 9 FLAMMABLE VAPOR CAN CAUSE A • Keep the genset, drip pan and compartment clean. Oily rags can catch fire. Gear stowed in DIESEL ENGINE TO OVERSPEED the compartment can restrict cooling. • Make sure all fasteners are secure and proper- Flammable vapor can cause a diesel engine to ly torqued.

  • Page 10: Introduction

    MODEL IDENTIFICATION Be ready to provide the genset model and serial numbers on the nameplate when contacting Onan for parts, service and product information. Fig- ure 1-1 illustrates the nameplate and its location on FIGURE 1-1.
  • Page 11 This side is intentionally blank Redistribution or publication of this document, by any means, is strictly prohibited.

  • Page 12: Control Panel

    2. Control Panel REMOTE CONTROL AND MONITORING • Push and Release STOP (Prime) to stop the genset. Remote Series Digital Displays and • Push and Hold STOP (Prime) to prime the fuel Control Switches system (amber lamp comes on in 2 seconds to indicate priming).
  • Page 13 OPTIONAL DIGITAL DISPLAY PANEL DIGITAL DISPLAY DC CIRCUIT BREAKER EMERGENCY STOP SWITCH STANDARD CONTROL SWITCH PANEL CONTROL SWITCH HOUR WITH STATUS LAMPS METER EMERGENCY STOP SWITCH DC CIRCUIT BREAKER FIGURE 2-1. GENSET CONTROL PANEL Redistribution or publication of this document, by any means, is strictly prohibited.

  • Page 14: Digital Display

    DIGITAL DISPLAY The e-Series Digital Display has an LCD screen with 4 navigation buttons, 3 status lamps, a START button and a STOP button (Figure 2-2). Turning On the Display Touch any button to turn on the Display, which will initialize and establish communications with the genset controller.
  • Page 15 Genset Status Genset status is displayed on 3 screen pages (Fig- ure 2-3). GEN STATUS PG1 appears when the Dis- play is turned on. Press the double arrows [ ] to toggle between the 3 screen pages. The Status line on PG1 will display the word Prim- ing, Starting, Running, Stopped, or Volt Adj.
  • Page 16 Fault Screen If a fault shutdown occurs the ALARM status lamp will blink and the LCD screen will display the Fault Number, a description of the Fault and the hour in total genset running time when the Fault occurred (Figure 2-4). Refer to TABLE 9-1. TROUBLE- SHOOTING GENSET FAULTS to diagnose and correct the problem.
  • Page 17 Fault History From FAULT, Fig. 2-3 To display any of the last five faults, press the FAULT button on any GEN STATUS screen. Then press the HIST button on the FAULT screen (Figure 2-5). The FAULT HISTORY screen will display the last Fault Number, a description of the Fault and the hour in total genset running time when the fault oc- curred.
  • Page 18 Brightness and Contrast From SCREEN, Fig. 2-3 To adjust the brightness and contrast of the LCD screen and status lamps, go to the SCREEN AD- JUST screen by pressing SCREEN on any GEN STATUS screen. Press NEXT to select Brightness or Contrast .
  • Page 19 TABLE 2-1. GENSET CONFIGURATION CODES Resetting Digital Display Hour Meter: Press GENSET MODEL CODE NUMBER NEXT to select Set Hour Meter. Then press the up- MDKBK—1-Phase down arrows [ ] to match the number of hours on MDKBL—1-Phase the master hour meter (p. 5-5).

  • Page 20: Operation

    3. Operation FUEL Diesel fuel is combustible and can WARNING cause severe personal injury or death. Do not smoke near fuel tanks or fuel-burning equip- ment or in areas sharing ventilation with such equipment. Keep flames, sparks, pilot flames, electrical arcs and switches and all other sources of ignition well away.

  • Page 21: Fire Extinguisher Port

    FIRE EXTINGUISHER PORT A genset with an enclosure has a fire extinguisher port accessible by breaking through the circle on the warning label located as shown in Figure 3-2. Make sure that the nozzle of the fire extinguisher that will be used in the event of fire is smaller than the circle so that it will fit through the port.

  • Page 22: Pre-Start Checks

    PRE-START CHECKS STARTING THE GENSET The genset can be started and stopped from the genset control panel or remote control panel. EXHAUST GAS is deadly. All en- WARNING 1. Push and Hold START on the e-Series Digital gine exhaust contains carbon monoxide; an Display or control switch until the genset starts.

  • Page 23: Loading The Genset

    LOADING THE GENSET On gensets so equipped, the PTO can take most, if not all, of the power available from the engine. The How much equipment load can be powered de- boat builder may have made provisions to automati- pends upon the genset power rating. The genset will cally disconnect all or most electrical loads when the shut down or its AC output circuit breakers will trip if PTO is engaged.

  • Page 24: Load Operation

    NO-LOAD OPERATION Keep no-load operation to a minimum. During LINE CIRCUIT BREAKER HANDLES no-load operation cylinder temperatures drop to the PULL FORWARD FOR ON point where fuel does not burn completely, causing fuel wetting and white smoke. It is best to run the genset at 1/4 to 3/4 load.

  • Page 25: Cold Temperature Operation

    COLD TEMPERATURE OPERATION 4. Disconnect the battery cables (negative [−] cable first) from the starting battery and store Drain the heat exchanger (p. 4-8) and muffler be- the battery according to the battery manufac- fore cold weather sets in if the genset is not being turer’s recommendations.

  • Page 26: Periodic Maintenance

    1 − Includes inspection of Oil Level, Coolant Level, Fuel System, Exhaust System, Batteries and Battery Connections. 2 − See battery manufacturer’s recommendations 3 − Check for slippage, cracking and wear. 4 − Must be performed by a qualified mechanic (authorized Onan dealer). Redistribution or publication of this document, by any means, is strictly prohibited.

  • Page 27: General Inspection

    GENERAL INSPECTION vided (see Installation Manual), open the sea valve for the water drain hose. Inspect the genset before the first start of the day Check for and replace hoses that leak or are dam- and after every eight hours of operation. aged.

  • Page 28: Checking Engine Oil Level

    (A filter dip stick (Figure 4-1, 4-2 or 4-3). Add or drain oil as wrench is available from Onan.) Remove the necessary. Add 1 quart (0.9 liters) when the level old gasket if it does not come off with the filter.
  • Page 29 OIL FILL OIL DRAIN FUEL FILTER AND HOSE WATER SEPARATOR OIl FILTER FIGURE 4-1. OIL AND FUEL SERVICE POINTS—MDKBK, MDKBL, MDKBM, MDKBN OIL DIPSTICK OIL FILL FUEL FILTER AND WATER SEPARATOR OIl FILTER FIGURE 4-2. OIL AND FUEL SERVICE POINTS—MDKBP, MDKBR, MDKBS Redistribution or publication of this document, by any means, is strictly prohibited.
  • Page 30 FUEL FILTER OIL DIPSTICK OIL FILL OIL FILTER OIL DRAIN HOSE FIGURE 4-3. OIL AND FUEL SERVICE POINTS—MDKBT, MDKBU Redistribution or publication of this document, by any means, is strictly prohibited.

  • Page 31: Draining/Replacing Fuel Filters

    DRAINING/REPLACING FUEL FILTERS Replacing Fuel Filters: See Table 4-1 for sched- uled fuel filter replacement. Replace fuel filters (Fig- Diesel fuel is combustible and can ure 4-1, 4-2 or 4-3) if the engine lacks power. WARNING cause severe personal injury or death. Do not 1.

  • Page 32: Maintaining The Engine Cooling System

    MAINTAINING THE ENGINE COOLING sure (10 psi) is essential for optimal engine cooling and minimal coolant loss. SYSTEM Refer to Table 4-1 for scheduled maintenance. Coolant Hoses Cooling System Overview Check for and replace hoses that leak or are dam- The engine is cooled by a pressurized, closed-loop aged.
  • Page 33 Refilling Cooling System formed. Torque the strap screws as specified in Figure 4-6. Close the block and heat exchanger drain valves Zinc Anode and fill the system through the engine fill neck. The system will fill only as fast as the air can escape. Fill Replace the zinc anode as recommended to the bottom of the fill neck.
  • Page 34 RAW WATER CLEANOUT COVER (BOTH ENDS) DRAIN VALVE COOLANT COOLANT ZINC RAW WATER DRAIN PLUG ANODE (BOTH ENDS) RAW WATER RAW WATER FIGURE 4-4. ENGINE COOLING SYSTEM—MDKBK, MDKBL, MDKBM, MDKBN Redistribution or publication of this document, by any means, is strictly prohibited.
  • Page 35 RAW WATER TO PUMP FROM COOLANT RESERVOIR WITH PRESSURE CAP AND BULKHEAD FITTING ON COOLANT FILL NECK. FILL NECK HAS HOSE BARB RIGHT OR LEFT SIDE FOR CONNECTING COOLANT RECOVERY TANK LOCATION, OPTIONAL LOW COOLANT LEVEL SENSOR COOLANT THERMOSTAT HOUSING COOLANT TEMPERATURE SENSOR...
  • Page 36 HOSE, THERMOSTAT TO COOLANT RESERVOIR HOSE, RAW WATER TO HOSE, RAW WATER TO EXHAUST-WATER MIXER* EXHAUST-WATER MIXER* HOSE, COOLANT RESERVOIR TO HEAT EXCHANGER HOSE, HEAT EXCHANGER TO COOLANT PUMP LOCATION, RAW WATER FLOW SWITCH ZINC ANODE HOSE, RAW WATER PUMP TO HEAT EXCHANGER HEAT EXCHANGER MOUNTING STRAPS (2)
  • Page 37 MDKBK, MDKBL, MDKBM, MDKBN solution or a silicone lubricant. It also helps to twist the impeller while squeezing it into the housing.
  • Page 38 Adjusting V-Belt Tension TENSION ADJUSTING The V-belt drives the battery charging alternator and BOLT coolant pump (Figure 4-8). See Table 4-1 for scheduled inspection or replacement. Adjust belt tension as follows: 1. Disconnect the negative (−) cable at the battery to prevent the engine from starting.
  • Page 39 Replacing the Thermostat See Table 4-1 for scheduled replacement. Refer- ring to Figure 4-9, replace the thermostat as follows: 1. Disconnect the negative (−) cable at the battery to prevent the engine from starting, let the en- gine cool and remove the front and back access doors if the genset has an enclosure.

  • Page 40: Genset Control

    (1-Phase or 3-Phase). connect the electrostatic discharge bond strap. See Page 2-8. Model MDKBK: Remove the four (4) screws that secure the controller enclosure to the side of the Connectors genset and pull the enclosure and controller away as an assembly.
  • Page 41 ALL MODELS EXCEPT MDKBK MODEL MDKBK Bond Strap FIGURE 5-1. GENSET CONTROLLER AND ITS MOUNTING Redistribution or publication of this document, by any means, is strictly prohibited.
  • Page 42 Major Functions of Genset Controller Stop: Touch the control switch to STOP (Prime). The controller: Initialization: Control initialization consists of 1. Disables output voltage. checking memory (RAM, ROM, EEPROM) and 2. Deenergizes the fuel lift pump and governor ac- genset configuration. tuator.
  • Page 43 LOCAL DIGITAL DISPLAY REMOTE DIGITAL DISPLAYS OR CONTROL SWITCH AND/OR CONTROL SWITCHES B+, DISPLAY, START/STOP, RS485 VESSEL MONITORING SYSTEM WAKE (B+)* NIM* ™ J1939 or Smart Craft CUSTOMER CONNECTIONS CONFIGURATION, HZ & DC VOLT SELECT ELECTRIC FUEL PUMP GOVERNOR ACTUATOR K4 (START) GENSET CONTROL...

  • Page 44: Digital Display

    DIGITAL DISPLAY Accidental or remote starting can WARNING AMBER cause severe personal injury or death. Before removing a panel or access door, disconnect GREEN the negative (−) cable at the battery to prevent the engine from starting. Either a Digital Display or a control switch is SCHEMATIC mounted on the control panel (Figure 2-1).

  • Page 45: Engine Oil Pressure Sender (E1)

    SENDER E1 when installing. In isolated-ground applications the sender has two terminals. FIGURE 5-5. ENGINE SENSORS—MDKBK, MDKBL, MDKBM, MDKBN Replace the sender if resistance is not approximate- ly 800 ohms at room temperature or does not de- crease rapidly when immersed in boiling water.

  • Page 46: Raw Water Flow Switch (S6)

    RAW WATER FLOW SWITCH (S6) The raw water flow switch is threaded into a hose “T” (Figure 5-5, 5-6 or 5-7). Use thread sealant and en- gage at least two full threads when installing. Accidental or remote starting can WARNING cause severe personal injury or death.

  • Page 47: High Exhaust Temperature Switch (S5)

    When provided, this switch is threaded into the cool- SWITCH S6 ant reservoir (Figure 5-7, 5-8 or 5-9). Use thread sealant when remounting the switch. FIGURE 5-8. LOW COOLANT LEVEL & HIGH EXHAUST TEMPERATURE SWITCHES—MDKBL, MDKBK, MDKBM, MDKBN COOLANT LEVEL SWITCH HIGH EXHAUST TEMPERATURE SWITCH S6 FIGURE 5-9.

  • Page 48: Governor Actuator (A12)

    Replace the actuator if the plunger does not pull in all the way and stay in while power is applied. FIGURE 5-10. ACTUATOR A12—MDKBL, MDKBK, MDKBM, MDKBN, MDKBT, MDKBU Reinstall the actuator with a new flange gasket.

  • Page 49: Network Interface Module (Nim)

    TABLE 5-1. J1939 ADDRESSES JUMPER W3 JUMPER W4 ADDRESS Note:For SAE J1939 applications, see Onan Publica- Not Cut Not Cut tion D-3315, Supported Messages on SAE J1939. This is the basis for the software interface between Not Cut the genset controller and the remote boat monitor.
  • Page 50 Troubleshooting LEDs does not communicate, troubleshoot the network harness. The NIM must be awake to communicate. To wake LED indicator lights DS1 and DS3 are not used at up the NIM, press the start switch on the genset. this time. The NIM will always be awake when the genset is running.

  • Page 51: Bonding For Electrostatic Discharge Control

    Bond Strap MODEL MDKBK Control Panel Bond Strap BOND STRAP SCREWS WITH TOOTHED WASHERS ALL MODELS EXCEPT MDKBK Main Bond Strap FIGURE 5-13. BONDING FOR ELECTROSTATIC DISCHARGE CONTROL 5-12 Redistribution or publication of this document, by any means, is strictly prohibited.

  • Page 52: Engine And Accessories

    MAJOR ENGINE SERVICE TABLE 6-1. ENGINE WORKSHOP MANUAL Genset Manual Accidental or remote starting can WARNING MDKBK, MDKBL, MDKBM, MDKBN 981−0528 cause severe personal injury or death. Before removing an access door or belt guard, discon- MDKBP, MDKBR, MDKBS 981−0521 nect the negative (−) cable at the battery to pre-...

  • Page 53: Exhaust Manifold

    DRY-EXHAUST OUTLET GASKETS HIGH EXHAUST TEMPERATURE SHORT SWITCH EXHAUST MANIFOLD & WATER−EXHAUST COOLANT RESERVOIR MIXER FIGURE 6-1. TYPICAL EXHAUST MANIFOLD / COOLANT RESERVOIR—MDKBK, MDKBL, MDKBM, MDKBN, MDKBT, MDKBU Redistribution or publication of this document, by any means, is strictly prohibited.
  • Page 54 DRY-EXHAUST ASSEMBLY WET-EXHAUST ASSEMBLY GASKETS WET EXHAUST MIXER MANIFOLD STUD, EXHAUST MANIFOLD WASHER AND NUT (2 PER PORT) FIGURE 6-2. TYPICAL EXHAUST MANIFOLD—MDKBP, MDKBR, MDKBS Redistribution or publication of this document, by any means, is strictly prohibited.

  • Page 55: Fuel System

    FUEL SYSTEM 2. Prime the genset by pushing the Start/Stop switch to STOP(Prime) and holding it there for the duration of the test. It should not take longer Diesel fuel is combustible and can WARNING than 1-1/2 minutes to fill a 1 liter container cause severe personal injury or death.
  • Page 56 GLOW PLUGS; (3, 4 OR 5) FUEL RETURN CONNECT TO BULK- HEAD FITTING EITHER FUEL SUPPLY FUEL FILTER FUEL LIFT PUMP FIGURE 6-3. TYPICAL FUEL SYSTEM AND GLOW PLUGS Redistribution or publication of this document, by any means, is strictly prohibited.

  • Page 57: Starter

    STARTER battery terminal from the vessel grounding system while the genset is running. (The engine block is connected to battery negative [−] during starting.) Accidental or remote starting can WARNING Replace the relay if its contacts do not close when cause severe personal injury or death.

  • Page 58: Generator

    7. Generator OVERVIEW 3. The genset controller (p. 5-1) rectifies and modulates quadrature winding output (Q1, Q2) These are 4-pole, rotating-field, brushless, single- to supply the exciter stator (F1, F2). By compar- bearing generators (Figure 7-1). Operation is as fol- ing generator output voltage with a reference lows: value the genset control regulates field current...

  • Page 59: Testing Generator

    TESTING GENERATOR Dry the windings if low readings are obtained or the set has been in standby for a long time in high hu- Winding Insulation Resistance Test midity conditions and repeat the test. Procedure Winding Resistance Test Procedure A 500 VAC megger is recommended for the winding insulation resistance tests prescribed below.
  • Page 60 Exciter Stator Winding Resistance: Measure winding resistance between pins P3-7 and P3-6. Replace the exciter Winding Insulation Resistance: Disconnect gen- stator if the resistance is not as specified in set control connector P3. Connect pin P3-7 or P3-6 Table 7-1. to the megger and conduct the test as instructed un- der Winding Insulation Resistance Test Procedure.
  • Page 61 Exciter Rotor 1. Test Forward Bias on Positive Rectifier Assem- bly − Touch meter positive to field terminal F1+ Winding Insulation Resistance: Disconnect all six and meter negative to diode terminals CR1, exciter rotor leads from diode terminals CR1 CR2 and CR3. through CR6 and isolate them from ground.
  • Page 62 DIODE TERMINAL (6) FOR EXCITER WINDING POSITIVE (+) NEGATIVE (−) LEAD. TORQUE TO 24 LB-IN (2.6 N-M). USE FLAT DIODE ASSEMBLY DIODE ASSEMBLY WASHER TO PROTECT LEAD CONNECTOR LEFT-HAND SIDE, RIGHT-HAND SIDE, SHAFT KEY UP SHAFT KEY UP DIODE ASSEMBLY MOUNTING SCREW (2) TERMINALS F1+ AND F2−...
  • Page 63 Main Rotor Connect either or both leads to the megger and con- duct the test as instructed under Winding Insulation Winding Insulation Resistance: Disconnect the Resistance Test Procedure. main rotor leads from terminals F1+ and F2+ on the rotating rectifier assemblies and isolate them from Winding Resistance: Disconnect the main rotor ground.
  • Page 64 Main Stator Winding-to-Winding Insulation Resistance: Dis- connect genset control connector P3 and all main Main Winding Insulation Resistance: Test each stator leads from the terminals to which they are winding separately. Disconnect the winding lead connected. Check stator winding-to-winding insula- from its grounded neutral connection and isolate it.
  • Page 65 TABLE 7-1. GENERATOR STATOR AND ROTOR WINDING RESISTANCES REFERENCE MAIN QUADRATURE MAIN ROTOR EXCITER ROTOR EXCITER STATOR LENGTH WINDING WINDING WINDING RE- WINDING RE- WINDING RE- MILLIMETERS RESISTANCE RESISTANCE SISTANCE SISTANCE SISTANCE 2, 3 (INCHES) OHMS OHMS OHMS OHMS OHMS 4-Lead Generators (Single-Phase) 341 (13.4) 0.179−0.197...

  • Page 66: Disassembly

    DISASSEMBLY 3. Hook the genset lifting eye with a hoist, remove the throughbolts in the two generator mounts, Accidental starting can cause se- tip the generator end up slightly with the hoist WARNING vere personal injury or death. Disconnect the and block the flywheel housing to support the negative (−) cable(s) at the battery(ies) to pre- engine while the generator is being serviced.

  • Page 67: Reassembly

    REASSEMBLY 9. On models with stator through bolts, assemble the end bell to the stator, making sure the scribed index lines (Step 5, Disassembly) reg- Reassembly is the reverse of disassembly. Note the ister and the rotor bearing seats fully in the following when reassembling the generator: bore.

  • Page 68: Reconfiguring Voltage And Frequency

    8. Reconfiguring Voltage and Frequency AS MANUFACTURED The genset was set up and adjusted at the factory for the frequency and voltage stated in the “As Manufactured” block on the nameplate (Fig- ure 8-1). If it is necessary to reconfigure voltage and/or frequency for the application, follow the in- structions in this section.

  • Page 69: Adjusting Voltage Using Optional Digital Display

    ADJUSTING VOLTAGE USING OPTIONAL DIGITAL DISPLAY Volt Adj Note:The GEN STATUS screen will not display AC Voltage while the genset is in voltage adjust mode. The line for displaying the voltage is filled in as shown in Figure 8-3. A separate voltmeter is required for voltage adjustment.
  • Page 70 9. Troubleshooting TROUBLESHOOTING WITH STATUS LAMP Use TABLE 9-1. TROUBLESHOOTING GENSET FAULTS in conjunction with the e-Series Digital Dis- If a fault shutdown occurs, the amber status lamp on play or blinking control switch status lamp to trouble- the control switch will repeatedly blink sets of 3, 4, 5 shoot the genset.
  • Page 71 TABLE 9-1. TROUBLESHOOTING GENSET FAULTS Some genset service procedures present hazards that can result in severe personal WARNING injury or death. Only trained and experienced service personnel with knowledge of fuels, electricity, and machinery hazards should perform genset service. See Safety Precautions. Accidental or remote starting can cause severe personal injury or death.
  • Page 72 TABLE 9-1. TROUBLESHOOTING GENSET FAULTS (CONT.) Some genset service procedures present hazards that can result in severe personal WARNING injury or death. Only trained and experienced service personnel with knowledge of fuels, electricity, and machinery hazards should perform genset service. See Safety Precautions. Accidental or remote starting can cause severe personal injury or death.
  • Page 73 TABLE 9-1. TROUBLESHOOTING GENSET FAULTS (CONT.) Some genset service procedures present hazards that can result in severe personal WARNING injury or death. Only trained and experienced service personnel with knowledge of fuels, electricity, and machinery hazards should perform genset service. See Safety Precautions. Accidental or remote starting can cause severe personal injury or death.
  • Page 74 TABLE 9-1. TROUBLESHOOTING GENSET FAULTS (CONT.) Some genset service procedures present hazards that can result in severe personal WARNING injury or death. Only trained and experienced service personnel with knowledge of fuels, electricity, and machinery hazards should perform genset service. See Safety Precautions. Accidental or remote starting can cause severe personal injury or death.
  • Page 75 TABLE 9-1. TROUBLESHOOTING GENSET FAULTS (CONT.) Some genset service procedures present hazards that can result in severe personal WARNING injury or death. Only trained and experienced service personnel with knowledge of fuels, electricity, and machinery hazards should perform genset service. See Safety Precautions. Accidental or remote starting can cause severe personal injury or death.
  • Page 76 TABLE 9-1. TROUBLESHOOTING GENSET FAULTS (CONT.) Some genset service procedures present hazards that can result in severe personal WARNING injury or death. Only trained and experienced service personnel with knowledge of fuels, electricity, and machinery hazards should perform genset service. See Safety Precautions. Accidental or remote starting can cause severe personal injury or death.
  • Page 77 TABLE 9-1. TROUBLESHOOTING GENSET FAULTS (CONT.) Some genset service procedures present hazards that can result in severe personal WARNING injury or death. Only trained and experienced service personnel with knowledge of fuels, electricity, and machinery hazards should perform genset service. See Safety Precautions. Accidental or remote starting can cause severe personal injury or death.
  • Page 78 TABLE 9-1. TROUBLESHOOTING GENSET FAULTS (CONT.) Some genset service procedures present hazards that can result in severe personal WARNING injury or death. Only trained and experienced service personnel with knowledge of fuels, electricity, and machinery hazards should perform genset service. See Safety Precautions. Accidental or remote starting can cause severe personal injury or death.
  • Page 79 TABLE 9-1. TROUBLESHOOTING GENSET FAULTS (CONT.) Some genset service procedures present hazards that can result in severe personal WARNING injury or death. Only trained and experienced service personnel with knowledge of fuels, electricity, and machinery hazards should perform genset service. See Safety Precautions. Accidental or remote starting can cause severe personal injury or death.
  • Page 80 TABLE 9-1. TROUBLESHOOTING GENSET FAULTS (CONT.) Some genset service procedures present hazards that can result in severe personal WARNING injury or death. Only trained and experienced service personnel with knowledge of fuels, electricity, and machinery hazards should perform genset service. See Safety Precautions. Accidental or remote starting can cause severe personal injury or death.
  • Page 81 TABLE 9-1. TROUBLESHOOTING GENSET FAULTS (CONT.) Some genset service procedures present hazards that can result in severe personal WARNING injury or death. Only trained and experienced service personnel with knowledge of fuels, electricity, and machinery hazards should perform genset service. See Safety Precautions. Accidental or remote starting can cause severe personal injury or death.
  • Page 82 TABLE 9-1. TROUBLESHOOTING GENSET FAULTS (CONT.) Some genset service procedures present hazards that can result in severe personal WARNING injury or death. Only trained and experienced service personnel with knowledge of fuels, electricity, and machinery hazards should perform genset service. See Safety Precautions. Accidental or remote starting can cause severe personal injury or death.
  • Page 83 This side is intentionally blank Redistribution or publication of this document, by any means, is strictly prohibited.
  • Page 84 10. Specifications MDKBK MDKBL MDKBM MDKBN ALTERNATOR: Single-Bearing, Brushless 4-Pole Rotating Field with Digital Electronic Regulation. See Genset Nameplate for Rating. FUEL CONSUMPTION: 60 Hz: Full Load 0.8 gph (3.0 liter/hr) 0.8 gph (3.0 liter/hr) 1.0 gph (3.8 liter/hr) 1.2 gph (4.5 liter/hr) Half Load 0.5 gph (1.9 liter/hr)
  • Page 85 MDKBP MDKBR MDKBS ALTERNATOR: Single-Bearing, Brushless 4-Pole Rotating Field with Digital Electronic Regulation. See Genset Nameplate for Rating. FUEL CONSUMPTION: 60 Hz: Full Load 1.3 gph (4.9 liter/hr) 1.9 gph (7.2 liter/hr) 2.5 gph (9.5 liter/hr) Half Load 0.8 gph (3.0 liter/hr) 1.1 gph (4.2 liter/hr) 1.5 gph (5.7 liter/hr) 50 Hz:...
  • Page 86 MDKBT MDKBU ALTERNATOR: Single-Bearing, Brushless 4-Pole Rotating Field with Digital Electronic Regulation. See Genset Nameplate for Rating. FUEL CONSUMPTION: 60 Hz: Full Load 2.5 gph (9.5 liter/hr) 3.0 gph (11.2 liter/hr) Half Load 1.5 gph (5.7 liter/hr) 1.5 gph (5.6 liter/hr) 50 Hz: Full Load 2.1 gph (8.0 liter/hr)
  • Page 87 This side is intentionally blank Redistribution or publication of this document, by any means, is strictly prohibited.
  • Page 88 630-2694 WIRING DIAGRAM (SHEET 1) Redistribution or publication of this document, by any means, is strictly prohibited.
  • Page 89 * NOT AVAILABLE ON ALL MODELS 630-2694 WIRING DIAGRAM (SHEET 2) Redistribution or publication of this document, by any means, is strictly prohibited.
  • Page 90 630-2694 WIRING DIAGRAM (SHEET 3) Redistribution or publication of this document, by any means, is strictly prohibited.
  • Page 91 338-4396 CONTROL WIRING HARNESS—MODELS MDKBK, MDKBL, MDKBM, MDKBN Redistribution or publication of this document, by any means, is strictly prohibited.
  • Page 92 338-4412 CONTROL WIRING HARNESS—MODELS MDKBP, MDKBR, MDKBS Redistribution or publication of this document, by any means, is strictly prohibited.
  • Page 93 338-4790 CONTROL WIRING HARNESS—MODELS MDKBT, MDKBU Redistribution or publication of this document, by any means, is strictly prohibited.

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